PROJECT

GRANTEE

PROJECT AREA

GRANT #

AWARD AMOUNT

GRANT PERIOD

GRANT STATUS

PRINCIPAL INVESTIGATORS

INDUSTRY CHAMPIONS

CPF ALLIES

RESEARCH PURPOSE

Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing

University of Texas at Austin

Structural Engineering

05-14

$247,240

July 2014 - March 2016

Complete

Wassim M. Ghannoum, Ph.D.

Mike Mota – CRSI
Ron Klemencic – MKA
Dominic Kelly – SGH
Andrew Taylor – KPFF
Loring Wyllie – Degenkolb

American Concrete Institute (ACI), Applied Technology Council (ATC), Concrete Reinforcing Steel Institute (CRSI)

The proposed study will explore critical material and structural behaviors at the boundaries of high-strength steel properties that can currently be achieved. Key steel properties that will be explored are: 1) the tensile-to-yield strength ratio (T/Y ratio), 2) the ultimate or uniform elongation, and 3) the low-cycle fatigue performance. Material and structural tests on concrete columns will be conducted to compare behaviors at the high and low ends of the steel properties in production. Such tests will provide much needed experimental evidence to define structurally acceptable properties for steel mills to target in production and the research community to use in structural testing.

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